[URL="http://api.tweetmeme.com/share?url=http://sports.espn.go.com/nfl/news/story?id=5813895&campaign=rss&source=NFLHeadlines&service=bit.ly&source=espn"][IMG]http://api.tweetmeme.com/imagebutton.gif?url=http://sports.espn.go.com/nfl/news/story?id=5813895&campaign=rss&source=NFLHeadlines[/IMG][/URL]Quarterback Chad Henne is missing the Miami Dolphins' only practice in preparation for Thursday night's game against the Chicago Bears.